Build standardized otpauth:// URIs for Google Authenticator & 1Password.
Execution runs 100% locally inside the browser sandbox using HTML5 Canvas, Web Cryptography Subtle API, and Web Workers. Zero egress.
Zero network latency. Operates completely offline with zero dependencies on third-party backend servers or cloud services.
Built according to official RFC specifications, cryptographic test vectors, and enterprise-grade data transformation standards.
Specify your app name and user email address.
Input the 16-character or 32-character secret key.
Copy the URI to encode into a QR code for 2FA enrollment.
It is a standard URI scheme recognized by Google Authenticator, Authy, and 1Password for importing TOTP secrets.
The standard TOTP period is 30 seconds with 6 decimal digits.
Zero-egress companion tools in the Security & Network suite
Audit CSP, HSTS, X-Frame-Options, and security headers with OWASP grading (A+ to F).
Measure cryptographic randomness, Shannon entropy (0-8 bits/byte), Chi-square test, and byte distributions.
Generate secure RFC 6238 Base32 TOTP secret keys and standard otpauth:// URIs for Google Authenticator.
Construct and validate HTTP CSP headers and meta tags.
